C# Generics won't allow Delegate Type Constraints

Question

Is it possible to define a class in C# such that

class GenericCollection : SomeBaseCollection where T : Delegate

I couldn

Answer 1

Edit: Some proposed work-arounds are proposed in these articles:

http://jacobcarpenters.blogspot.com/2006/06/c-30-and-delegate-conversion.html

http://jacobcarpenters.blogspot.com/2006_11_01_archive.html

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From the C# 2.0 specification we can read (20.7, Constraints):

A class-type constraint must satisfy the following rules:

• The type must be a class type.
• The type must not be sealed.
• The type must not be one of the following types: System.Array, System.Delegate, System.Enum, or System.ValueType.
• The type must not be object. Because all types derive from object, such a constraint would have no effect if it were permitted.
• At most one constraint for a given type parameter can be a class type.

And sure enough VS2008 spits out an error:

error CS0702: Constraint cannot be special class 'System.Delegate'

For info and investigation on this issue read here.